A mistaken touch prevention fuse type disconnector

Abstract

This invention relates to the field of disconnecting switch technology and discloses a fuse-type disconnecting switch designed to prevent accidental activation. The switch includes a main body with two limiting grooves on both the left and right outer walls. The invention works by using an arc-shaped compression mechanism to open the short shaft at the other end of an elastic ring. This causes the elastic ring to contract, and as it contracts, its outer surface no longer compresses the spring end at the bottom of the spring shaft. Furthermore, the spring shaft does not form a wedge-shaped obstruction between the trapezoidal groove and the arc-shaped plate on the surface of the bearing plate. This allows the operator to smoothly open the switch cover using the handle. By distinguishing between unintentional slow opening, vibration, and intentional rapid opening, accidental unlocking due to slow force or vibration can be prevented, thereby improving the stability and safety of the device against accidental activation.

Description

Technical Field

[0001] This invention relates to the field of disconnecting switch technology, specifically to a fuse-type disconnecting switch designed to prevent accidental activation. Background Technology

[0002] A fuse-type disconnect switch is a device that combines the functions of a fuse and a disconnect switch. It can quickly cut off the circuit by melting the fuse when the circuit is overloaded or short-circuited. It mainly consists of a base, a flip cover, a fuse, and an arc-extinguishing chamber. The flip cover is rotatably mounted on the base, while the fuse is installed inside the flip cover. The opening and closing of the circuit is achieved by rotating the flip cover. When a fuse-type disconnect switch is in operation, it is necessary to prevent accidental contact. The usual method to prevent accidental contact is to lock the switch cover onto the switch base when the switch is closed. The switch cover and the switch base are locked by the cooperation of the knife fuse switch and the contact seat. This means that the switch cover can only be opened by pushing up and down, and cannot be opened by directly lifting it. However, since the lock is only made by the cooperation of the knife fuse switch and the contact seat, the switch cover can be easily opened when the switch cover is subjected to external vibration or downward force, which may lead to accidental unlocking and affect the stability and safety of the disconnect switch in preventing accidental contact. Summary of the Invention

[0003] The purpose of this invention is to provide a fuse-type disconnect switch that prevents accidental activation, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a fuse-type disconnect switch designed to prevent accidental activation, comprising a main body, with two limiting grooves formed on both the left and right outer walls of the main body, and further comprising: The limiting mechanism is installed on the side wall of the main body to realize the anti-accidental touch function of the device; The limiting mechanism includes a bearing plate located on the side of the main body near the limiting groove, and a closed cover bolted to the side of the bearing plate away from the main body. Several trapezoidal grooves are opened on the top outer wall of the bearing plate. An auxiliary mechanism is installed on the inner wall of the bearing plate to ensure the stability of the limit mechanism during the process of preventing accidental activation. The auxiliary mechanism includes an elastic ring disposed inside the bearing plate.

[0005] Furthermore, the main body includes: The opening and closing assembly is installed on the side wall of the main body and is used to close the main body. The contact component is installed on the side wall of the opening and closing component and is used to control the opening and closing between the switch cover and the main body.

[0006] Furthermore, the limiting mechanism also includes: The movable component is installed on the side wall of the carrier plate to limit the position of the contact component when it is not being pulled quickly. The elastic component is installed on the outside of the carrier plate and prevents accidental contact by being squeezed by the moving component and the carrier plate.

[0007] Furthermore, the auxiliary mechanisms also include: Deformation component, which is installed on the side wall of the elastic ring, is used to control the movement of the movable component; The pressure-bearing component is installed on the side wall of the deformation component to ensure the integrity of the deformation component after reset.

[0008] Furthermore, the opening and closing assembly includes a support plate that is slidably connected inside the bottom limiting groove, and a switch cover is fixedly connected between the two support plates; Guide grooves are provided on the left and right outer walls of the switch cover, and a fixed shaft is fixedly connected to the side of the switch cover near the guide groove; Among them, the side wall of the support plate is fixedly penetrated by a rod, which is slidably connected inside the top limiting groove; The contact assembly includes a handle that is rotatably connected to the outer surfaces of the two plugs; Among them, a fixing ring is fixedly connected to the side wall of the handle on the outer surface of the insertion rod, and an inclined plate is fixedly connected to the outer surface of the fixing ring.

[0009] Furthermore, the support plate is fixedly connected to the outer surface of the insertion rod; The movable component includes a spring shaft disposed inside a trapezoidal groove, with one end of the spring shaft near the center of the bearing plate sliding through into the interior of the bearing plate; The bearing plate has a spherical rod inside, which is fixedly connected to the outer surface of the fixing ring; A movable plate is slidably connected to the top of the spherical rod. An auxiliary spring is fixedly connected to the side wall of the movable plate. The end of the auxiliary spring away from the movable plate is fixedly connected to the outer wall of the rod. The top of the spherical rod is spherically connected. The movable plate can also rotate through the spherical end during the sliding process at the top of the spherical rod.

[0010] Furthermore, the elastic component includes an arc-shaped plate fixedly connected to the side of the main body near the limiting groove, and an elastic strip is fixedly connected to the top of the arc-shaped plate; A linear spring is fixedly connected to the side of the elastic strip closest to the arc plate, and the end of the linear spring away from the elastic strip is fixedly connected to the side wall of the arc plate. Elastic strip one is fixedly connected to elastic strip two at the end away from the arc plate, and elastic strip two has several notches on the top inner wall; The outer surface of the fixed shaft contacts the top outer wall of the second elastic strip. When the switch cover rotates downward, it will exert downward pressure on the second elastic strip through the fixed shaft, causing the second elastic strip and the first elastic strip to bend downward.

[0011] Furthermore, the deformation component includes a V-shaped spring piece fixedly connected to the inner wall of the top of the elastic ring, the sidewall of the V-shaped spring piece being notched; A telescopic shaft is fixedly connected to the bottom inner wall of the elastic ring, and the end of the telescopic shaft away from the elastic ring is fixedly connected to the outer surface of the insertion rod.

[0012] Furthermore, the sidewall of the V-shaped spring slides through the limiting shaft, and the bottom of the limiting shaft is fixedly connected to the outer surface of the insertion rod. Among them, an arc-shaped rod is fixedly connected to the side of the elastic ring away from the main body, and a short shaft is fixedly connected to the side of the elastic ring close to the arc-shaped rod; The arc-shaped rod is made of rigid material and its end is inclined. When the V-shaped spring is compressed and contracted on one side, the arc-shaped rod can form a downward squeezing force on the short axis through its inclined surface, causing the elastic ring to contract.

[0013] Furthermore, the pressure-bearing component includes two semicircular plates fixedly connected to the inner wall of the top of the elastic ring, a trapezoidal plate is provided between the two semicircular plates, and a spring rod slides through the middle of the trapezoidal plate; The top of the spring rod is fixedly connected to the outer surface of the limiting shaft; Two long rods are fixedly connected to the side of the trapezoidal plate away from the main body, and the two long rods slide through to the outside of the closed cover; The top sidewall of the handle located at the bottom of the long rod is inclined and in contact with the long rod, so that the handle can push the long rod upward when it is reset.

[0014] The present invention has the following beneficial effects: 1. This invention, by extruding the short shaft at the other end of the elastic ring in an arc shape, causes the entire elastic ring to contract. When the elastic ring contracts, its outer surface no longer presses against the spring end at the bottom of the spring shaft, and the spring shaft no longer forms a wedge-shaped obstruction between the trapezoidal groove and the arc plate on the surface of the bearing plate. At this time, the operator can smoothly pull open the switch cover through the handle. By distinguishing between unintentional slow pulling, vibration, and intentional fast pulling of the handle, the invention can prevent accidental unlocking caused by slow force or vibration, thereby improving the stability and safety of the device in preventing accidental touch.

[0015] 2. In this invention, when the two semicircular plates move away from each other, they will cause the elastic ring to open outward, providing an auxiliary reset force to the elastic ring. During sliding, it ensures the integrity of the elastic ring and the V-shaped spring after reset, reducing the situation where the V-shaped spring is subjected to rapid impact from the moving plate for a long time, resulting in deformation and difficulty in complete reset, causing the elastic ring to be in a contracted state. This ensures the locking function during accidental touch prevention while improving the continuity and locking strength of the lock.

[0016] 3. This invention limits the rotation speed of the switch cover when it reaches its limit by the friction between the elastic strip and multiple spring shafts. By slowing down the rotation speed of the switch cover at the end of its rotation, it can avoid the situation where the switch cover rotates too fast when the handle is subjected to a rapid downward force, which would cause the switch cover to collide with the main body when it is opened, resulting in damage between the switch cover and the main body and breakage at the base. This improves the safety and anti-accidental contact efficiency when the device is separated.

[0017] 4. The present invention, through the opening and closing movement between elastic strip two and elastic strip one, can reduce the situation where elastic strip one automatically resets through the fixed shaft under its own elasticity and the elastic reset force of the linear spring, thus ensuring the stability of the position of the switch cover after opening and closing. By ensuring the stability of the position of the switch cover after reset, the continuity and efficiency of maintenance of this equipment can be ensured.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded view of the opening and closing component of the present invention; Figure 5 This is a schematic diagram of the contact component of the present invention; Figure 6 This is a partial explosion diagram of the limiting mechanism of the present invention; Figure 7 This is a schematic diagram of the elastic component of the present invention; Figure 8 This is a schematic diagram of the initial state of the limiting mechanism of the present invention. Figure 9 This is a schematic diagram of a partial explosion of the pressure-bearing component of the present invention; Figure 10 This is a plan view of the device after it has been moved according to the present invention; Figure 11 For the present invention Figure 10 Enlarged view of section B in the middle.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Limiting groove; 11. Opening and closing assembly; 111. Switch cover; 112. Guide groove; 113. Fixed shaft; 114. Insert rod; 12. Contact assembly; 121. Handle; 122. Fixed ring; 123. Inclined plate; 2. Limiting mechanism; 201. Bearing plate; 21. Movable assembly; 211. Spring shaft; 212. Ball rod; 213. Movable plate; 22. Elastic assembly; 221. Arc plate; 222. Elastic strip one; 223. Elastic strip two; 3. Auxiliary mechanism; 301. Elastic ring; 31. Deformation assembly; 311. V-shaped spring; 312. Telescopic shaft; 313. Limiting shaft; 32. Pressure-bearing assembly; 321. Semicircular plate; 322. Trapezoidal plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-11 As shown, the present invention is a fuse-type disconnect switch designed to prevent accidental activation, comprising a main body 1, wherein two limiting grooves 101 are formed on the left and right outer walls of the main body 1, and further comprising: Limiting mechanism 2 is installed on the side wall of the main body 1 to realize the anti-accidental touch function of the device; The limiting mechanism 2 includes a bearing plate 201 disposed on the side of the main body 1 near the limiting groove 101. A closed cover is bolted to the side of the bearing plate 201 away from the main body 1. Several trapezoidal grooves are opened on the top outer wall of the bearing plate 201. Auxiliary mechanism 3 is installed on the inner wall of the bearing plate 201 to ensure the stability of the limit mechanism 2 during the process of preventing accidental contact. The auxiliary mechanism 3 includes an elastic ring 301 disposed inside the bearing plate 201.

[0024] Entity 1 includes: The opening and closing component 11 is installed on the side wall of the main body 1 and is used to close with the main body 1. Contact component 12 is installed on the side wall of opening and closing component 11 and is used to control the opening and closing between switch cover 111 and body 1.

[0025] The limiting mechanism 2 also includes: The movable component 21 is installed on the side wall of the support plate 201 to limit the position of the contact component 12 when it is not pulled quickly. The elastic component 22 is installed on the outside of the support plate 201 and prevents accidental contact by being squeezed by the movable component 21 and the support plate 201.

[0026] Auxiliary mechanism 3 also includes: Deformation component 31 is installed on the side wall of elastic ring 301 and is used to control the movement of movable component 21; The pressure-bearing component 32 is installed on the side wall of the deformation component 31 to ensure the integrity of the deformation component 31 after reset.

[0027] The opening and closing assembly 11 includes a support plate that is slidably connected inside the bottom limiting groove 101, and a switch cover 111 is fixedly connected between the two support plates; The left and right outer walls of the switch cover 111 are provided with guide grooves 112, and a fixed shaft 113 is fixedly connected to the side of the switch cover 111 near the guide grooves 112. Among them, the side wall of the support plate is fixedly penetrated by the insertion rod 114, and the insertion rod 114 is slidably connected inside the top limiting groove 101; Contact assembly 12 includes a handle 121 rotatably connected to the outer surfaces of the two inserts 114; Among them, a fixing ring 122 is fixedly connected to the side wall of the handle 121 on the outer surface of the plug rod 114, and an inclined plate 123 is fixedly connected to the outer surface of the fixing ring 122. When it is necessary to close the switch cover 111 with the main body 1, the operator holds the handle 121 and pushes it upward. After the handle 121 is pushed upward, it will drive the switch cover 111 to rotate in the direction of the main body 1, so that the switch cover 111 and the main body 1 are closed.

[0028] The carrier plate 201 is fixedly connected to the outer surface of the insertion rod 114; The movable component 21 includes a spring shaft 211 disposed inside the trapezoidal groove, with one end of the spring shaft 211 near the middle of the support plate 201 sliding through into the interior of the support plate 201. The bearing plate 201 is provided with a ball rod 212 inside, and the ball rod 212 is fixedly connected to the outer surface of the fixing ring 122; A movable plate 213 is slidably connected to the top of the spherical rod 212. An auxiliary spring is fixedly connected to the side wall of the movable plate 213. The end of the auxiliary spring away from the movable plate 213 is fixedly connected to the outer wall of the insert rod 114. The top of the spherical rod 212 is spherically connected. The movable plate 213 can also rotate through the spherical end during the sliding process of the top of the spherical rod 212. If the operator continues to pull down the handle 121, the spring shaft 211 will form a wedge-shaped friction self-lock between the inclined surface of the trapezoidal groove and the arc plate 221, and the resistance will increase sharply, thereby effectively preventing the handle 121 from driving the switch cover 111 to open further.

[0029] The elastic component 22 includes an arc-shaped plate 221 fixedly connected to the side of the main body 1 near the limiting groove 101, and an elastic strip 222 is fixedly connected to the top of the arc-shaped plate 221. A linear spring is fixedly connected to the side of the elastic strip 222 near the arc plate 221, and the end of the linear spring away from the elastic strip 222 is fixedly connected to the side wall of the arc plate 221. Elastic strip 223 is fixedly connected to one end of elastic strip 222 away from the arc plate 221. Several notches and grooves are provided on the top inner wall of elastic strip 223. The outer surface of the fixed shaft 113 contacts the top outer wall of the elastic strip 223. When the switch cover 111 rotates downward, it will exert downward pressure on the elastic strip 223 through the fixed shaft 113, causing the elastic strip 223 and the elastic strip 222 to bend downward. When the handle 121 drives the switch cover 111 to separate from the main body 1, the switch cover 111 will rotate downward with the handle 121 and apply downward squeezing force to the elastic strip 223 through the fixed shaft 113. When the elastic strip 223 is subjected to downward pressure, the elastic strip 223 will drive the elastic strip 222 to bend downward synchronously. At this time, the bent elastic strip 223 and the elastic strip 222 will block between the bearing plate 201 and the multiple spring shafts 211.

[0030] The deformation component 31 includes a V-shaped spring piece 311 fixedly connected to the inner wall of the top of the elastic ring 301, and the side wall of the V-shaped spring piece 311 is notched. A telescopic shaft 312 is fixedly connected to the bottom inner wall of the elastic ring 301. The end of the telescopic shaft 312 away from the elastic ring 301 is fixedly connected to the outer surface of the insertion rod 114. When the movable plate 213 is rotating, the movable plate 213 will quickly push the inclined surface of the V-shaped spring 311. At this time, the side of the V-shaped spring 311 that is pushed will move closer to the limiting shaft 313 and drive one end of the elastic ring 301 to slide.

[0031] The side wall of the V-shaped spring 311 slides through the limiting shaft 313, and the bottom of the limiting shaft 313 is fixedly connected to the outer surface of the insertion rod 114. Among them, an arc-shaped rod is fixedly connected to the side of the elastic ring 301 away from the main body 1, and a short shaft is fixedly connected to the side of the elastic ring 301 close to the arc-shaped rod. Among them, the arc-shaped rod is made of rigid material and the end of the arc-shaped rod is inclined. When the V-shaped spring sheet 311 is compressed and contracted on one side, the arc-shaped rod can form a downward compressive force on the short axis through its inclined surface, so that the elastic ring 301 contracts.

[0032] The pressure-bearing component 32 includes two semi-circular plates 321 fixedly connected to the inner wall of the top of the elastic ring 301, a trapezoidal plate 322 is provided between the two semi-circular plates 321, and a spring rod slides through the middle of the trapezoidal plate 322. The top of the spring rod is fixedly connected to the outer surface of the limiting shaft 313; Two long rods are fixedly connected to the side of the trapezoidal plate 322 away from the main body 1, and the two long rods slide through to the outside of the closed cover; The top sidewall of the handle 121 located at the bottom of the long rod is inclined and in contact with the long rod. The handle 121 can push the long rod upward when it is reset. When the handle 121 is pushed upward and drives the switch cover 111 to reset, the handle 121 applies an upward pushing force to the two long rods on the trapezoidal plate 322 through the inclined surface of the sidewall of the handle 121 located at the bottom of the long rod, causing the trapezoidal plate 322 to slide upward. When the trapezoidal plate 322 slides upward, it will form a compressive force on both sides between the two semicircular plates 321.

[0033] When in use, when it is necessary to close the switch cover 111 with the main body 1, the operator holds the handle 121 and pushes it upward. After the handle 121 is pushed upward, it will drive the switch cover 111 to rotate towards the main body 1, so that the switch cover 111 and the main body 1 are closed. At this time, the closed switch cover 111 and the main body 1 are kept in the closed state under the contact of the internal knife switch.

[0034] When the device is subjected to external vibration, or when the operator accidentally pulls down the handle 121 slowly, the handle 121 will rotate slowly, causing the inclined plate 123 and the ball rod 212 to rotate synchronously. During the rotation, the ball rod 212 will slowly compress the movable plate 213, and its top will gradually slide from the center of the bottom of the movable plate 213 to the end. During this process, the movable plate 213 will gradually change from an inclined state to a horizontal state. The change of state of the movable plate 213 will generate an upward pushing force on the bottom of the V-shaped spring 311. After being subjected to force, the V-shaped spring 311 will push the elastic ring 301 to expand outward. At this time, the outwardly expanding elastic ring 301 will push the elastic ends of the multiple spring shafts 211 located inside the bearing plate 201, so that the spring shafts 211 are in the trapezoidal groove and Between the arc-shaped plates 221, if the operator continues to pull down the handle 121, the spring shaft 211 will form a wedge-shaped friction self-lock between the inclined surface of the trapezoidal groove and the arc-shaped plate 221, and the resistance will increase sharply, thereby effectively preventing the handle 121 from driving the switch cover 111 to open further. When the operator needs to open the switch cover 111 normally, the operator only needs to reset the handle 121 and pull it down quickly. At this time, the handle 121 will drive the ball rod 212 to rotate quickly through the fixing ring 122. When the ball rod 212 rotates quickly, it will generate an instantaneous squeezing force on the side wall of the movable plate 213. At this time, the movable plate 213 will be pushed by the ball rod 212 and instantly pass the elastic point of the auxiliary spring on the movable plate 213, changing from an inclined state to a vertical state. Figure 11 As shown in the position of G, during the transformation of the movable plate 213, the movable plate 213 will quickly push the inclined surface of the V-shaped spring 311. At this time, the side of the V-shaped spring 311 that is pushed will move closer to the limiting shaft 313, and drive one end of the elastic ring 301 to slide. When one end of the elastic ring 301 slides, the elastic ring 301 will drive the arc-shaped rod to slide, and by the arc-shaped compression of the short shaft at the other end of the elastic ring 301, the entire elastic ring 301 will contract. When the elastic ring 301 contracts... The outer surface of the elastic ring 301 will no longer press the spring end at the bottom of the spring shaft 211, and the spring shaft 211 will not form a wedge-shaped obstruction between the trapezoidal groove and the arc plate 221 on the surface of the bearing plate 201. At this time, the operator can smoothly pull open the switch cover 111 through the handle 121. By distinguishing between unintentional slow opening, vibration and intentional fast opening of the handle 121, the accidental unlocking caused by slow force or vibration can be prevented, thereby improving the stability and safety of the device against accidental touch.

[0035] It should be noted that when the handle 121 is pushed upward to close the switch cover 111, the upward pushing force on the handle 121 will cause the contact assembly 12 and the inclined plate 123 to rotate. When the inclined plate 123 rotates, it will squeeze the notch on the V-shaped spring 311, thereby causing the elastic ring 301 to contract and reducing the pushing force on the spring shaft 211, ensuring the smoothness of the handle 121 driving the switch cover 111 to close and reset.

[0036] When the elastic ring 301 contracts, the two ends of the top of the elastic ring 301 centered on the notch will move closer together, simultaneously causing the two semicircular plates 321 to slide closer together. When the two semicircular plates 321 move closer together, they will exert a downward squeezing force on the trapezoidal plate 322. When the handle 121 is pushed upward and causes the switch cover 111 to reset, during the rotation of the handle 121, the inclined surface of the side wall of the handle 121 at the bottom of the long rod applies an upward pushing force to the two long rods on the trapezoidal plate 322, causing the trapezoidal plate 322 to slide upward. When the trapezoidal plate 322 slides upward, it will form a force between the two semicircular plates 321. The side pressure causes the two semicircular plates 321 to slide away from each other under the push of the trapezoidal plate 322. When the two semicircular plates 321 move away from each other, they will cause the elastic ring 301 to open outward, providing an auxiliary reset force for the elastic ring 301. During sliding, the integrity of the elastic ring 301 and the V-shaped spring 311 after reset is ensured, reducing the situation where the V-shaped spring 311 is subjected to rapid impact from the movable plate 213 for a long time, and it is difficult to fully reset after deformation, resulting in the elastic ring 301 being in a contracted state. This ensures the locking function during accidental touch prevention while improving the continuity and locking strength of the lock.

[0037] When the handle 121 causes the switch cover 111 to separate from the main body 1, the switch cover 111 will rotate downward with the handle 121 and apply downward pressure to the elastic strip 223 through the fixed shaft 113. When the elastic strip 223 is subjected to downward pressure, the elastic strip 223 will cause the elastic strip 1 222 to bend downward synchronously. At this time, the bent elastic strip 223 and the elastic strip 1 222 will block between the bearing plate 201 and the multiple spring shafts 211. Thus, when the switch cover 111 is about to rotate to the limit position, the friction between the elastic strip 1 222 and the multiple spring shafts 211 can limit the rotation speed of the switch cover 111 when it reaches the limit position. By slowing down the rotation speed of the switch cover 111 at the end of its rotation, it is possible to avoid the switch cover 111 rotating too fast when the handle 121 is subjected to a rapid downward force, which would cause the switch cover 111 to collide with the main body 1 when it opens, resulting in damage between the switch cover 111 and the main body 1 and breakage at the root. This improves the safety and anti-accidental contact efficiency of the device when it is separated.

[0038] When the switch cover 111 rotates rapidly downwards, the elastic strip 223 is compressed by the fixed shaft 113. The elastic strip 223 then bends downwards at the end of the elastic strip 222, forming a near-crossing shape with the end of the elastic strip 222. Figure 10 In the state indicated by position B, the end of elastic strip 222 will be embedded in the notch groove on the top inner wall of elastic strip 223. At this time, elastic strip 223 and elastic strip 222 can form elastic movement. Through the opening and closing movement between elastic strip 223 and elastic strip 222, the situation where elastic strip 222 automatically resets the switch cover 111 through fixed shaft 113 under its own elasticity and the elastic reset force of the linear spring can be reduced, ensuring the stability of the position of switch cover 111 after opening and closing. By ensuring the stability of the position of switch cover 111 after reset, the continuity and efficiency of maintenance of this equipment can be ensured.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fuse-type disconnect switch designed to prevent accidental activation, comprising a main body (1), wherein two limiting grooves (101) are provided on both the left and right outer walls of the main body (1), characterized in that, Also includes: Limiting mechanism (2), the limiting mechanism (2) is installed on the side wall of the main body (1) to realize the anti-accidental touch function of the device; The limiting mechanism (2) includes a bearing plate (201) disposed on the side of the main body (1) near the limiting groove (101). A closed cover is bolted to the side of the bearing plate (201) away from the main body (1). Several trapezoidal grooves are opened on the top outer wall of the bearing plate (201). Auxiliary mechanism (3) is installed on the inner wall of the bearing plate (201) to ensure the stability of the limit mechanism (2) during the process of preventing accidental contact; The auxiliary mechanism (3) includes an elastic ring (301) disposed inside the bearing plate (201).

2. The anti-accidental contact fuse-type disconnect switch according to claim 1, characterized in that: The main body (1) includes: An opening and closing component (11) is installed on the side wall of the main body (1) for closing with the main body (1); Contact component (12), which is installed on the side wall of opening and closing component (11), is used to control the opening and closing between switch cover (111) and body (1).

3. The anti-accidental contact fuse-type disconnect switch according to claim 2, characterized in that: The limiting mechanism (2) further includes: The movable component (21) is installed on the side wall of the support plate (201) to limit the position of the contact component (12) when it is not being pulled quickly; The elastic component (22) is installed on the outside of the support plate (201) and is designed to prevent accidental contact by being squeezed by the movable component (21) and the support plate (201).

4. The anti-accidental contact fuse-type disconnect switch according to claim 3, characterized in that: The auxiliary mechanism (3) also includes: Deformation component (31), which is installed on the side wall of elastic ring (301) and is used to control the movement of movable component (21); The pressure-bearing component (32) is installed on the side wall of the deformation component (31) to ensure the integrity of the deformation component (31) after reset.

5. A fuse-type disconnector switch for preventing accidental contact according to claim 4, characterized in that: The opening and closing assembly (11) includes a support plate that is slidably connected inside the bottom limiting groove (101), and a switch cover (111) is fixedly connected between the two support plates. The switch cover (111) has guide grooves (112) on its left and right outer walls, and a fixed shaft (113) is fixedly connected to the side of the switch cover (111) near the guide grooves (112). The side wall of the support plate is fixedly perforated by a rod (114), which is slidably connected inside the top limiting groove (101). The contact assembly (12) includes a handle (121) rotatably connected to the outer surfaces of the two inserts (114). Among them, a fixing ring (122) is fixedly connected to the side wall of the handle (121) on the outer surface of the insertion rod (114), and an inclined plate (123) is fixedly connected to the outer surface of the fixing ring (122).

6. A fuse-type disconnector switch for preventing accidental contact according to claim 5, characterized in that: The bearing plate (201) is fixedly connected to the outer surface of the insertion rod (114); The movable component (21) includes a spring shaft (211) disposed inside the trapezoidal groove, the end of the spring shaft (211) near the middle of the support plate (201) sliding through into the interior of the support plate (201); The bearing plate (201) is provided with a spherical rod (212) inside, and the spherical rod (212) is fixedly connected to the outer surface of the fixing ring (122); The top of the spherical rod (212) is slidably connected to a movable plate (213), and an auxiliary spring is fixedly connected to the side wall of the movable plate (213). The end of the auxiliary spring away from the movable plate (213) is fixedly connected to the outer wall of the insert rod (114).

7. The anti-accidental contact fuse-type disconnect switch according to claim 3, characterized in that: The elastic component (22) includes an arc-shaped plate (221) fixedly connected to the side of the main body (1) near the limiting groove (101), and an elastic strip (222) is fixedly connected to the top of the arc-shaped plate (221). A linear spring is fixedly connected to the side of the elastic strip (222) near the arc plate (221), and the end of the linear spring away from the elastic strip (222) is fixedly connected to the side wall of the arc plate (221). The end of the elastic strip one (222) away from the arc plate (221) is fixedly connected to the elastic strip two (223), and the top inner wall of the elastic strip two (223) is provided with several notches and grooves.

8. A fuse-type disconnector switch for preventing accidental contact according to claim 5, characterized in that: The deformation component (31) includes a V-shaped spring piece (311) fixedly connected to the inner wall of the top of the elastic ring (301), and the side wall of the V-shaped spring piece (311) is notched. The bottom inner wall of the elastic ring (301) is fixedly connected to a telescopic shaft (312), and the end of the telescopic shaft (312) away from the elastic ring (301) is fixedly connected to the outer surface of the insertion rod (114).

9. A fuse-type disconnector according to claim 8, characterized in that: The sidewall of the V-shaped spring (311) slides through the limiting shaft (313), and the bottom of the limiting shaft (313) is fixedly connected to the outer surface of the insert (114). Among them, an arc-shaped rod is fixedly connected to the side of the elastic ring (301) away from the main body (1), and a short shaft is fixedly connected to the side of the elastic ring (301) close to the arc-shaped rod.

10. A fuse-type disconnector according to claim 4, characterized in that: The pressure-bearing component (32) includes two semicircular plates (321) fixedly connected to the inner wall of the top of the elastic ring (301), and a trapezoidal plate (322) is provided between the two semicircular plates (321), with a spring rod slidingly passing through the middle of the trapezoidal plate (322); The top of the spring rod is fixedly connected to the outer surface of the limiting shaft (313); Two long rods are fixedly connected to the side of the trapezoidal plate (322) away from the main body (1), and the two long rods slide through to the outside of the closed cover.

Images